Carton and means for opening the same



Aug. 13, 1929. 4 A. c. SCHROEDER CARTON AND MEANS FOR OPENING THE SAMEFiled May 28, 1927 INVENTOR H W/0E C1 Sc/JZOEDER ATTORNEYS Patented Aug.13, 1929.

um'rizo STATES,

ARTHUR C. SCHROEDER, F SYRACUSE, NEW YORK.

CARTON AND MEANS FOR OPENING THE SAME.

Application filed May 28,

This invention relates to improvements in cartons, and has particularreference to the I method of manufacture thereof and the means foropening the same.

An object of the invention is to provide a simple and effective meansfor quickly cutting the material of the carton adjacent one of its endclosures in such manner that access may be had to the interior of thecarton and its contents Without injury to the latter.

Another object is to extend a ripping cord along the interior of theside walls of the carton with an end of the cord-projecting through onewall, and to secure said cord in 1 position by a flexible strip which isso positioned that, after the cutting or ripping operation by the cord,the cut portion at one end of the carton will still be joined to themain body thereof by said strip, which may be subsequently torn tocompletely sever said portion.

A further object resides in securing a length of ripping cord inposition on a blank of material from which a number of cartons are to beformed, then cutting said blanks into the required lengths for makingthe cartons, and thereafter forcing a short portion of the cord throughone of the walls of each carton so that said portion will projectexteriorly of said wall where it can be readily grasped to effect theripping operation.

The above and other objects will appear more clearly from the followingdetail description, when taken in connection with the accompanyingdrawing, which illustrates a preferred embodiment of the inventive idea.In the drawing Figure 1 is a perspective view of a carton constructed inaccordance with the invention;

Figure 2 is a plan view of the blank from which a single carton isformed;

Figure 3 is a section on the line 33'of -Figure 2; and Figure 4: is asection on the line 4--4 of Figure 2.

In themanufacture of cartons according to the present invention, a wellknown material, such as double faced corrugated paper, is employed.During the fabrication of this material, which includes the silicatingof the outer sheets on the opposed faces of the inner corrugated layeror sheet, it has been found that, without additional labor or machineryand atthe time when the sheets are silicated, a ripping cord,-indica edin the 1927. Serial No. 194,904.

drawing by the numeral 15, may be laid upon one of the outer sheets andextended along the entire length of material being run through themachine. At the same time, reinforcing strips 16 and 18, of differentpaper or other flexible material, may be secured to said sheetlongitudinally thereof so as to reinforce the scored or folding lines 14made in the material and the strip 16 is so placed as to cover the cord15 and thereby firmly secure it to the sheet. Following the applicationof the cord and reinforcing strips the material is cut into properlengths to form a plurality of blanks from each ,of which is made one ofthe cartons illustrated in the drawing. The blank is cut so that thecorrugations of the inner sheet or layer thereof extend transversely ofthe length of the blank, as clearly illustrated in Figures 3 and 4, andin sodoing the ripping cord is also cut at the ends of the blank so thatsaid cord extends the entire length thereof. The blank is now cutintermediate its ends to form the sections 5, 6, 7 and 8, which 'con- 80stitute the side walls of the carton when the blank is foldedtransversely, said intermediate cuts also forming the flaps 9, 10, 11and 12 which extend from the opposite longitudinal edges of the sidewalls and which. combine to form the top and bottom closures of thecarton when said flaps are folded in pairs. The folding lines 14,previously referred to, for the various flaps are formed by a double rowof scoring extending on each side and longitudinally of the sectlons 5to it and preferably overlapping said folding Ines. A suitable tool isutilized to punch an openin 13 i-n the blank adjacent one end thereofand at the same time project the portion 17 of the cord, between saidopening and. said end, through the opening so that when the carton isfolded said end will extend exteriorly thereof and be in position Whereit may be grasped when opening the carton. Thus, with the exception ofthe ends 17, the cord 15 extends practically entirely around theinterior of the four side walls of the carton in parallel relation andadjacent to the folding lines 14 which define the flaps constituting thetop closure of the carton. It will be understood, of course, i that thecord may be made to extend around only three side walls by forming theopening p 13 adjacent the right-hand edge of the section 7, forinstance, in which event the porjacent folding lines 14 and portions ofthe flaps 9 to 12. This strip 16, during its application to the materialfrom which the blank is cut, is secured, by means of an adhesive, overits entire surface to portions of the side walls and closure flaps andinasmuch as the same covers both the ripping cord and pair by a suitableadhesive applied to the entire area of the abutting surfaces of theflaps. This manner of closing the carton is one which is commonlyemployed with receptacles of this kind and has the disadvantage that,Without an opening means such as hereindescribed, access cannot bereadily had to the interior of the carton through a clothereupon to tearthe flexible strip. It. will sure without danger of injuring the.contents of the carton."

When the end 17 of the ripping cord is pulled in the direction of thearrow indicated in Figure 1, the material is cut transversely of thecorrugations until the top closure and portions of three or four of theside walls are separated from the remaining portions of said wall. In sodoing, however, the flexible strip 16 is unaffected and when the cuttingoperation has been completed thetop closure 'isstill connected to theremainder of the cartonby reason of the fact that the strip is securedto the side walls on both sides of the ripping. cord. Hence the topclosure will not be completely detached until such time when theoperator exerts a 'suflicient pull to retain the closure connected tothe side walls, after the cutting operation, said strip need notnecessarily overlap the folding lines 14,. but only be secured to thematerial on both sides of the ripping cord.

With a construction of the type described it is apparent that a cartonis provided to the interior of which access may be had to examine orremove the contents of the carton without injury to said contents whichotherwise occurs at times when implements are inserted under the closureflaps to pry the same open.

What is claimed is:

1. The herein described method which con sists in laying a ripping cordalong one side of a length of corrugated material while said material isbeing formed, securing said cord to the material by a flexible strip,thereafter cutting said material into suitable lengths to form blanksfrom which cartons are to be made, and then forcing a short length'ofsaid cord through the material of each blank so as to project from theopposite side thereof and constitute a grip by means of which thematerial may be ripped by a pull on said cord.

'2. The herein described method which consists in securing a rippingcord along a length of material while in the act of fabrieating thelatter, cutting said material into suitable lengths to form blanks fromwhich cartons are to be made, and forcing a short length of said cordthrough said material adjacent one end of each blank.

3. The herein described method which consists in securing a ripping cordalong one side of a length of corrugated material while in the act offabricating the latter, cutting said material and cord into suitablelengths to form blanks from which cartons are to be made, nd forcing alength of said cord through the material of each blank so that it willproject from the side thereof opposite that to which the cord is securedand at a point distant from one end of said blank.

In testimony whereof I have affixed my signature.

ARTHUR C. SCHROEDER.

